Base Difficulty

Base difficulty: Level 18 edit

Level distribution for pronoun (pronoun_other): 9: 1 10: 3 11: 6 18: 9 226: 2

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 1818 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Movers (2 of 3) 750
cefr A1 (1 of 6) 800

Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 67.78 1351 100% 1351 1
20th_books 82.24 1175 100% 1175 1
wiki_math 0.00 — — — 0
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 0.00 — — — 0
wiki_arts 47.57 2888 100% 2888 1
wiki_society 63.49 2193 100% 2193 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 34.70 3799 100% 3799 1
early_modern_science 0.00 — — — 0
religious_translated 25.94 3325 100% 3325 1
cooking 0.00 — — — 0
legal_scotus 20.04 4552 100% 4552 1
eu_parliament_debates 189.32 629 100% 629 1
openstax_science 21.61 4828 100% 4828 1
openstax_society 144.68 980 100% 980 1
wpa_life_histories 89.41 1127 100% 1127 1

Best form = the single best-ranked form in the corpus, share-blind — how the spelling itself ranked. Share = how much of that spelling belongs to this lemma, when several senses compete for it. Zipf rank = all the forms combined (variant spellings included), each scaled by its share, and what feeds the combined frequency rank. Combining forms improves on the best form, but a share below 100% pushes the other way and usually wins: a sense holding a small slice of a common spelling is a rare word, so its rank lands downrated below the best form — and once it falls past what the corpus can support it is capped at the rank an unlisted word would get.